The study was done to determine distribution and frequencies of ABO and Rh blood groups among blood donors and to establish the existence or widespread of this hepatitis B virus among this group of people in FMC Owo. The study was carried out in Owo and the analysis of the samples was done in the Department of Haematology and Blood Bank, Federal Medical Centre, Owo, Ondo State. After an informed consent was obtained 120 blood donors (110 male and 10 females) volunteered to participate in the exercise. Demographic data forms which carried all the information, personal details such as occupation, educational back ground, age, sex, medical history e.t.c were filled by each donor. All the donors were apparently healthy, age 18 to 60 years with body weight 50kg. About 5ml of blood was collected from each donor with the donor in a sitting position. The blood was transferred into plain bottles and allowed to clot, centrifuged at 1500rpm for 3 minutes to obtain serum. The serum samples were transferred to vials for use and preserved at -20C until use. ABO and Rh grouping were determined using tiles methods by the agglutination of red cell in the presence of the corresponding antigen after a drop of antisera was placed on a clean tile. Hepatitis B surface antigen was determined by the Rapid Response TM Hepatitis B Surface Antigen (HBsAg) test strip. Simple percentage distributions and tables were used to represent the results. Phenotypic frequencies were calculated and expressed as percentage. Table-1 shows the age distribution and ABO blood group among various occupations of 120 subjects that participated in the research. The artisans were 26(12.6) with their age range 31-40. Their ABO blood group number and their percentages were as follow: A 2(1.66), B 5(4.17), AB 1(0.83) and O 8(5). Other groups of people % frequency, age range and ABO distributions were as shown in the table. Table-2 shows the occurrence of hepatitis B virus among the various groups of people that participated in this project work. The total number of people that were positive and negative and their percentages were 13(10.83) and 107(89.17). Artisans group showed the highest number 6(5) and Civil servants were the group with the least number 1(0.83). The ABO, rhesus (D) blood group and Hepatitis B virus distribution among the Owo blood donors were shown in Table-3. Out of the 120 donors only 4(3.3%) were rhesus (D) negative belonging to blood ABO blood group O. Other ABO blood groups were rhesus (D) positive. Blood group O also has the highest number of hepatitis B virus 13(10.9) while AB has the least (0). The Government should intensify and encourage the artisan to surrender themselves to be immunized against HBsAg and also encourage the adults to participate in voluntary blood donation in order to safe life.